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Utility Proportional Fair Bandwidth Allocation - An Optimization Oriented Approach

Please always quote using this URN: urn:nbn:de:0297-zib-8079
  • In this paper, we present a novel approach to the congestion control and resource allocation problem of elastic and real-time traffic in telecommunication networks. With the concept of utility functions, where each source uses a utility function to evaluate the benefit from achieving a transmission rate, we interpret the resource allocation problem as a global optimization problem. The solution to this problem is characterized by a new fairness criterion, \e{utility proportional fairness}. We argue that it is an application level performance measure, i.e. the utility that should be shared fairly among users. As a result of our analysis, we obtain congestion control laws at links and sources that are globally stable and provide a utility proportional fair resource allocation in equilibrium. We show that a utility proportional fair resource allocation also ensures utility max-min fairness for all users sharing a single path in the network. As a special case of our framework, we incorporate utility max-min fairness for the entire network. To implement our approach, neither per-flow state at the routers nor explicit feedback beside ECN (Explicit Congestion Notification) from the routers to the end-systems is required.

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Metadaten
Author:Tobias Harks
Document Type:ZIB-Report
Tag:Utility proportional fairness; congestion control; real-time applications; resource allocation
MSC-Classification:90-XX OPERATIONS RESEARCH, MATHEMATICAL PROGRAMMING / 90Bxx Operations research and management science
Date of first Publication:2004/08/10
Series (Serial Number):ZIB-Report (04-32)
ZIB-Reportnumber:04-32
Published in:Appeared in: Proceedings of QoS in Multiservice IP Networks 2005, Catania, Italy. LNCS vol. 3375, pp 61-74
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